diff --git a/subprojects/.gitignore b/subprojects/.gitignore
index d2ba9007..686faffc 100644
--- a/subprojects/.gitignore
+++ b/subprojects/.gitignore
@@ -3,5 +3,6 @@
 /googletest-release*
 /libpisp
 /libyuv
+/nlohmann_json*
 /packagecache
 /yaml-0.2.5